28293408000 has 1152 divisors, whose sum is σ = 123209049600. Its totient is φ = 6303744000.

The previous prime is 28293407999. The next prime is 28293408037. The reversal of 28293408000 is 80439282.

It is a tau number, because it is divible by the number of its divisors (1152).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 123551886 + ... + 123552114.

It is an arithmetic number, because the mean of its divisors is an integer number (106952300).

Almost surely, 2^28293408000 is an apocalyptic number.

28293408000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 28293408000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (61604524800).

28293408000 is an abundant number, since it is smaller than the sum of its proper divisors (94915641600).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28293408000 is a wasteful number, since it uses less digits than its factorization.

28293408000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 293 (or 263 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 36.

The spelling of 28293408000 in words is "twenty-eight billion, two hundred ninety-three million, four hundred eight thousand".